Of course, shoehorning circuitry and a battery into a small enclosure isn't easy, and while the Hotones run from a 9V adaptor only, the Seven Sisters can operate from a rechargeable lithium battery as well as a 9V adaptor. The Grace offers 120 hours of constant use from a four-hour charge.

Finished in a shade that complements any Seafoam Green Fender, it's a simple two-knob design, with one to turn up the compression and one for the volume.

It's sonic range isn't dissimilar to an MXR Dyna Comp: from a clean boost, through a tightening and thickening of your sound, to more obvious compression with a snap to the front end of the notes.

Amazing Grace? Well, we wouldn't go that far, but she's a decent-sounding, value-for-money compressor that will slot neatly into any 'board.